Sub and Sup characters in Glib::ustring?

[Hector Masuda <he kenji yahoo com>]

Hello, everybody.

I want to write a string with sub and sup characters
(like x², x³, etc). How can I do this to put in a
Glib::ustring and then show it in a
Gtk::TextBuffer/TextView? It that possible?


Thanks,
Hector


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